They Work Up side down
Vertical
Horizontal
Dimension for a Viro Lock
Installation Manual
viro lock
Electronic Latch lock 
Viro Electronic lock

Works from your Gate Opener

Electronic Gate Lock

When the gate is clicked to open the power to the solenoid lifts the tongue but requires force to reset it manually or by the closing of the gate - it's not recommended for hallway doors - Idea for swing gates. 
A MUST for added security on any automated single and dual swing gates. This lock system works in conjunction with the gate operator system Control Board to lock and unlock automatically. Recommended for gates over (2.4m) long, or any gates in high wind areas. Comes with a keyed manual release.
Installation: vertical or horizontal.
Backset: 70 mm.
Functions:
-service (standard): the lock opens with the electric impulse and only resets once the door/gate has been opened and then closed. It is therefore suitable for use with doorclosers and/or all types of automation systems.
-security (selected by manually removing an internal part): the lock opens only when electric impulse and manual or automatic pressure are applied simultaneously. It is therefore not advisable to use it with a doorcloser and/or unsuitable automation systems.
Double replaceable coil: which distributes the load uniformly and ensures a long working life.
Voltage:
standard 12VDC or 24VDC from the Control board on the gate motor
Case: one-piece galvanized steel.
Cover: galvanized steel.
Rotating deadbolt: solid brass.
Floor striker: galvanized steel, to be cemented to the ground or welded to the lower frame of the gate.
Supplied with: galvanized steel floor striker
for horizontal installation
Packaging: single box.
12V  Model  P/N  FK778
24V  Model  P/N  FK780

Electronic Gate latch


$180.00 
Each lock comes with a  latch plate that can be mounted Vertical or Horizontal
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